Device for regulating speed.



pan/687,257. Patented Nov. 26, |9 0l.

- c. ocmmon as. c. AHRENS.

DEVICE FOR REGULATING SPEED.

(Application. filed Mar. 18, 1901. v (No Model.) 5 Sheets-Sheet I.

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No. 687,257. Patented Nov. 26, I90]. 6. OGONNUR & G. C. AHBENS.

DEVICE FOR REGULATING SPEED.

(Application filed Max-p18, 1901.)

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No. 687,257. Patented m 2s, [90L c; ocouuon & a. c. AHRENSL DEVICE FORREGULATING'SPEED.

(Application filed'mar. 1S, 1901.] '(No Model.) 5 Sheets$heet 3.

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No. 687,257. Patented Nov. 26, Hill.

'C. 0CONNOR & G. C. AHBENS.- DEVICE FOR BEGULATING SPEED.

(Application filed Mar. 18, 1901.) (No Model) 5 sheets shoet 4.

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, Patented Nov. 26, |90l C. OCUNNDR &. G. C. AHBENS.

DEVICE FOR REGULAi'lNG SPEED.

' (Apylication filed Mar. 18, 1901.)

5 Sheets-Sheet 5.

(No Model.)

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WITNESSES A TTQHNEYS UNrrE STATES PATENT @FFIQE.

CHARLES OCONNOR AND GEORGE 'ol AHRENs'oF NEW YORK, N. Y.

DEVICE FOR REGULATING SPEED.

SPEGIFICATIONforming part of Letters Patent No. 687,257, dated November26, 1901.

I Application filed March 18, 1901. Serial No. 51,684. (No modeln To towhm'n it may concern.-

Be it known that we, CHARLES OOoNNoR, a resident of New York,(Greenpoint, borough of Brooklyn,) in the county of Kings, and GEORGE O.AHRENS, a resident of New York, (Blissville, borough of Queens,) in thecounty of Queens and State of New York, citizens of the United. States,have invented a new and Improved Device for Regulating Speed, ofwhichthe following is a full, clear, and exact description.

Our invention relates to devices for regulating the speed of machinery,being especially adaptable to power-pump machinery.

The purpose of the invention is to provide a simple mechanism forchanging or regulating the speed of power machinery without changing thediameter of the driving-pulley or interfering with said pulley or thedriving- I belt in any manner.

A further purpose of the invention is to provide a device for regulatingspeed capable of ready adaptation to all manner of pumps.

The invention consists in the novel construction and combination of. theseveral parts, as will be hereinafter fully set forth, and pointed outin the claims.

Reference is to be had to the accompanying drawings, forming apart ofthis specification, in which similar characters of reference indi-- catecorresponding parts in all'the figures.

Figure 1 is a front elevation of the device shown applied to the frameof a vertical form of power pump. Fig. 2 is a side elevation of thedevice applied to a verticaltype of powerpump, and Fig. 3 is a planviewof the device applied to the same formlof power-pump. Fig. 4 is aside elevation of the device applied to the frame of a horizontal typeof powerpump, and. Fig. 5 is a plan view of the device applied to arotary form of power-pump.

A represents a portion of the frame of an upright power-pump, Brepresents the pumpshaft, and C a large gear-wheel which is secured toone end portion of the said pump shaft. Preferably at the front of eachside of the said frame A, at ornear the top, arms 10 and 11 are carriedoutward, one arm upward and the other more or less downward, as. shownin Fig. 2, and each pair of arms 10 and- 11 serves to-support a hollowsegmental cas-T ing D, the are upon which the casing is constructedbeing taken from the center of the pump-shaft B. I In each casing D ajournalbox 12 is mounted to travel,'and these boxes extend beyond theouter faces of the casing D and have their forward or con'vexed edges attheir extended portions provided with series of teeth 13, as is bestshown in Fig. 2. These boxes 12 serve to journal a driven 6o shaft 14,which when the device is applied to the vertical form of pump is locatedin front of the pump-shaft B. The driven shaft 14 is provided within theframe with an attached gear 15, as is best shown in Fig. 1, and at oneouter end of the said driven shaft l l'apinion 26 is secured,whichpinion meshes with the teeth of the large gear 0 on the pumpshaft B, asis also best shown in Fig. 1.

The driven shaft 14 is raised and. lowered on the arc of a circleusually by means of the following mechanism: A shaft 16 is journaled insuitable bearings 28, attached to the cas-' ings D, and this shaft 16 isprovided with a handle 27 at one end and with beveled gears 17 near itsends. These bevel-gears 17 mesh with bevel-gears 18, and the bevel-gears18 are'carried .by suitable shafts 19, journaled in suitable bearingsattached to the front of the casings D. Each shaft 19 is provided with aworm-thread 21, which wormthreads mesh with the teeth 13 on thejournal-boxes 12. Thus by turning the shaft 16 thejournal-boxes 12 areraised and lowered, yet the pinion 26 always remains in mesh with thelarge gear O on the pump-shaft. .Eaoh vertical shaft 19 is preferablyprovided with a collar 22 above its worm-thread, as shown in Fig. 2; butwe desire it to be understood that the construction just described maybe varied in many particulars.

The main drive-shaft E is journaled in suitable bearings attached to thefront of the frame A, and this drive-shaft E is provided at one of itsends with fast and loose pulleys 5 23','as shown in Figs. 1, 2, and Acone of gears F is mounted to slideon the drive-shaft E within thecasing A, yet turn with the said shaft, and this cone of gears F isshifted on the drive-shaft through the medium of asuit- Ico able lever24. (Illustrated in Fig. 3.1) The gear..15 on the driven shaft isadapted to meshwith any one'of the series of gears c011- stituting thecone of gears F. Thus it will be observed that when the driven shaft 14:is

raised through the medium of the adjusting mechanism described the coneof gears F can be shifted on the drive-shaft, so as to bring any one ofthe gears constituting such cone in alinement with the gear 15 on thedriven shaft, and that when the driven shaft 14 is adjusted downward itsgear 15 will mesh with the desired gear on the drive-shaft, and thespeed communicated from the drive-shaft to the pn m p-shaf 11 will beincreased or decreased without removing the driving-belt from thedriving-pulley andthat the driving-pulley will at all times be of thesame diameter, thus utilizing therfull power of the driving-belt.

In Fig. 4 we have illustrated the application of the device to ahorizontal form of pump in which the frame is designated as A. In thisconstruction of pump the drive-shaft E is journaled in suitable bearingsabove the pump-shaft B, which latter shaft is provided with a large gear0 at one end, meshing with a pinion 26 on the end of a driven shaft 14,which driven shaft in this instance is below the drive-shaft E. Thisdriven shaft 14 is mounted in boxes 12, provided with teeth 13, and theboxes are held to slide in segmental casings D. The same adjustingmechanism for the driven shaft 14: is shown applied to the horizontalform of the pump, comprising a shaft having a handle 27 attached at oneend, the said shaft being provided with bevel-gears 17 near itsends,which mesh with bevel-gears 18, which are secured to worm-shafts19, the worms 21 of which shafts mesh with the teeth of the boxes 12.The driven shaft 1& is likewise provided between its ends with a largegear 15, and as the driven shaft 14: is adjusted this large gear 15 isadapted to mesh with any one of a series of gears forming a conical setof gears F, mounted upon and to turn with the driveshaft E, the saiddrive-shaft E being provided with fast and loose driving-pulleys 23. Inregulating the speed the driven shaft 14 is adjusted to or from thedrive-shaft E, as has been stated, so as to bring the gear 15 into meshwith any one of the gears in the conical set of gears F.

In Fig. 5 we have illustrated the adaptation of the device to a rotaryform of pump in which the pump-shaft is designated as B and the frame asA The pump-shaft B is provided with a large gear which meshes with apinion 26", carried by a driven shaft ltfljournaled in toothedbearing-boxes mounted to slide in segmental casings D attached to thepump-frame. These boxes are moved up and down in the segmental casingsby a shaft 16*, suitably mounted on the frame, provided with a handle 27at one end and with bevel-gears 17 at or near its ends,which bevel-gears17 mesh with corresponding gears 18, located on worm-shafts 19, theworms 21 of which engage with the teeth of the boxes provided forthedriven shaft 14 The driven shaft 14 is movable to or from a driveshaft Eon which a series of gears F arranged in conical form, are mounted toturn and slide, suitable shifting mechanism being employed, so that anyone of the gears F in the conical set may be brought into mesh with thegear 15 secured on the driven shaft at a point between its ends.

The device is exceedingly simple. It is adaptable to any form of pumpand to other machinery, and through its medium the speed may be changedor regulated without touching the driving-belt or changing the diameterof the driving-pulley employed.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent- 1. In devices for regulating the speed ofmachinery, a drive-shaft, a cone of gears mounted to slide upon and turnwith the drive-shaft, a driven shaft, a worm-gear for adjusting oneshaft to and from the other, and a gear carried by the driven shaft andadapted to mesh with any gear in the cone of gears, as set forth.

2. In devices for regulating the speed of machinery, the combination,with a driveshaft, a cone of gears mounted to slide upon and turn withthe said drive-shaft, and a beltpulley carried by the drive-shaft, of adriven shaft parallel with the drive-shaft, boxes for the driven shaftmounted to slide in an arc of a circle, adjusting devices for the boxes,and a gear secured upon the driven shaft and adapted to mesh with anygear in the cone of gears.

3. The combination, with a driveshaft and the main driving-shaft of apower-machine, a cone of gears mounted to turn with and slide upon thefirst-named drive-shaft, and a gear secured upon the said main shaft, ofboxes, segmental guides for the boxes, the center of the are upon whichthe guides are struck being the center of the said main driving-shaft,adjusting devices for the boxes, a driven or intermediate shaft mountedin the boxes, a pinion carried by the driven or intermediate shaft,which pinion meshes with the gear on the said main driving-shaft for thepoweranachine, and a gear secured upon the driven or intermediate shaft,adapted in the adjustment of the shaft to mesh with any gear in the coneof gears.

4. The combination, with the frame of a power-machine, the maindriving-shaft for the said machine, which main driving-shaft is,provided with a gear at one of its ends, segmental guides located on thesaid frame, the center of the are upon which the guides are struck beingthe center of the said main driving-shaft, and devices for adjusting thesaid boxes in the guides, of a drive-shaft provided with a belt-pulley,a cone of gears mounted to slide upon and turn with the drive-shaft, ashifting device for the cone of gears,a driven or intermediat-e'shaftmounted in the said boxes, a pinion at one end of the said intermediateordriven shaft,which pi nion meshes with ICC the gear on the maindriving-shaft and is in names to this specification in the presence of Iconstant mesh therewith,and a gear secured to two subscribing Witnesses.

the intermediate or driven shaft, which gem CHARLES OCONNOR.

in the adjustment of the said shaft is adapted GEORGE (J. AI-IRENS. 3 tomesh with any gear in the cone of gears, Witnesses: i

for the purpose set forth. O. F. C. HAWKINS,

In testimony whereof We have signed our F. L. R. SWEET.

